NU566 Unit 5 Journal:
Persistent fatigue, excessive thirst (polydipsia), recent weight changes, and a hemoglobin A1C (HbA1C) level of 8.5% indicate that this patient most likely has uncontrolled Type 2 diabetes mellitus (T2DM). While other conditions such as hypertension and hypothyroidism can contribute to fatigue, the patient’s history, symptoms, physical examination, and laboratory findings strongly support poor glycemic control as the primary diagnosis. Evidence-based management should focus on optimizing diabetes medications, improving lifestyle habits, monitoring for complications, enhancing medication adherence, and coordinating multidisciplinary care to lower the risk of long-term cardiovascular and microvascular complications.
Patient Chief Complaint
The patient presents with progressively worsening fatigue over the past several months.
During the visit, the patient states:
“To be honest, I did not really want to come here today, but my daughter insisted. She knows I missed my last appointment. But I have been really tired lately.”
Although fatigue is the primary concern, additional symptoms and the patient’s medical history strongly suggest uncontrolled diabetes as the underlying cause.
History of Present Illness
The patient reports experiencing persistent fatigue for approximately four to five months, with symptoms worsening throughout the day and becoming more noticeable during the afternoon. Short periods of rest temporarily improve energy levels, but fatigue quickly returns.
Additional symptoms include:
Increased thirst for approximately four months
Approximately five-pound weight change over the past year
Missed previous follow-up appointment
History of hypertension and Type 2 diabetes mellitus
Together, these findings strongly suggest chronic hyperglycemia and inadequate glycemic control, requiring reassessment of the current treatment plan.
Current Medications
| Medication | Dosage | Indication |
|---|---|---|
| Atenolol | 25 mg once daily | Hypertension |
| Hydrochlorothiazide | 25 mg once daily | Hypertension |
| Metformin | 2,000 mg once daily | Type 2 diabetes mellitus |
| Glyburide | 20 mg once daily | Type 2 diabetes mellitus |
| Low-dose aspirin | Once daily | Cardiovascular risk reduction |
Despite combination oral therapy, the patient’s symptoms and HbA1C level indicate that diabetes remains poorly controlled.
Medication Intolerances
The patient reports adverse medication effects that may reduce treatment adherence, including:
Gastrointestinal discomfort and diarrhea while taking metformin and glyburide
Frequent nighttime urination associated with hydrochlorothiazide
These concerns should be addressed through medication review, dosage adjustments, or consideration of alternative therapies.
Allergies
The patient reports no known drug allergies (NKDA).
Past Medical History
Significant medical conditions include:
Type 2 diabetes mellitus
Essential hypertension
The patient denies chronic kidney disease, chronic lung disease, major trauma, or other significant illnesses.
Surgical History
Previous surgical history includes:
Tonsillectomy at age three
Appendectomy at age twelve
One pregnancy approximately 34 years ago
No postoperative complications were reported.
Family History
| Family Member | Medical History |
|---|---|
| Mother | Type 2 diabetes mellitus |
| Father | Deceased from myocardial infarction |
| Sister | Arthritis; deceased from myocardial infarction |
The patient’s family history significantly increases her risk for cardiovascular disease and supports aggressive risk-factor modification.
Social History
The patient is a retired teacher with a bachelor’s degree who lives independently and safely at home.
She reports:
No tobacco use
No alcohol consumption
No recreational drug use
Not currently sexually active
Independent in activities of daily living
Although she maintains a healthy lifestyle in several areas, living alone and missing previous appointments may negatively affect medication adherence and diabetes self-management.
Review of Systems
General
Reports worsening fatigue and a five-pound weight change. Denies fever, chills, or night sweats.
Eyes
Uses reading glasses. Denies blurred vision, eye pain, diplopia, or history of diabetic retinopathy.
Cardiovascular
Denies chest pain, palpitations, dyspnea on exertion, dizziness, or edema. Hypertension and family history increase cardiovascular risk.
Respiratory
Denies cough, wheezing, or shortness of breath.
Gastrointestinal
Denies nausea, vomiting, abdominal pain, constipation, or diarrhea during today’s visit, although medication-related gastrointestinal discomfort has occurred previously.
Genitourinary
Reports nocturia likely related to hydrochlorothiazide therapy. Denies dysuria, urgency, hematuria, or urinary incontinence.
Musculoskeletal
Denies joint pain, weakness, or mobility limitations.
Neurological
Denies headaches, numbness, tingling, dizziness, or symptoms of peripheral neuropathy.
Psychiatric
Denies depression, anxiety, sleep disturbances, or suicidal thoughts.
Breast Examination
Breasts are symmetrical with everted nipples. No masses, tenderness, discharge, or skin abnormalities are identified.
Physical Examination
The examination demonstrates findings consistent with uncontrolled diabetes and poorly controlled hypertension without evidence of acute complications.
Vital Signs
| Measurement | Result |
|---|---|
| Height | 5 ft 7 in |
| Weight | 190 lb |
| BMI | 29.8 kg/m² |
| Temperature | 37.7°C |
| Blood Pressure | 160/90 mmHg |
| Pulse | 80 bpm |
| Respiratory Rate | 20 breaths/min |
The patient is overweight and has uncontrolled hypertension, both of which increase cardiovascular risk.
General Appearance
The patient appears mildly fatigued but remains alert, cooperative, appropriately groomed, and fully oriented.
Skin
Warm, dry, intact skin without ulcers, lesions, infection, or diabetic skin complications.
HEENT
Examination is within normal limits.
Notable findings include:
Pupils equal, round, and reactive to light
Extraocular movements intact
Normal fundoscopic examination
No diabetic retinopathy
Normal tympanic membranes
No cervical lymphadenopathy
No carotid bruits
No jugular venous distention
Cardiovascular
Normal heart rate and rhythm with normal S1 and S2 sounds. No murmurs, rubs, gallops, edema, or vascular abnormalities.
Respiratory
Clear bilateral breath sounds with normal respiratory effort. No wheezing, crackles, or rhonchi.
Gastrointestinal
Soft, non-tender abdomen without masses, guarding, or rebound tenderness.
Musculoskeletal
Full range of motion, normal gait, stable balance, and no muscle weakness.
Neurological
Speech, cognition, coordination, sensation, and muscle tone are normal. No evidence of diabetic neuropathy.
Psychiatric
Mood, affect, judgment, insight, and thought processes are appropriate.
Diagnostic Laboratory Findings
Most laboratory values are within normal limits, including:
Complete Blood Count (CBC)
Comprehensive Metabolic Panel (CMP)
Lipid profile
Thyroid-Stimulating Hormone (TSH)
Urinalysis
Urine microalbumin
Vitamin D level
The only significant abnormality is:
| Laboratory Test | Result | Interpretation |
|---|---|---|
| Hemoglobin A1C | 8.5% | Poor long-term glycemic control |
An HbA1C of 8.5% reflects persistent hyperglycemia over the previous two to three months and substantially increases the risk of diabetic nephropathy, neuropathy, retinopathy, stroke, and cardiovascular disease.
Assessment
The patient’s symptoms, medical history, examination findings, and elevated HbA1C strongly support uncontrolled Type 2 diabetes mellitus.
Additional risk factors include:
Blood pressure of 160/90 mmHg
BMI of 29.8 kg/m²
Strong family history of cardiovascular disease
Medication intolerance affecting adherence
These findings place the patient at high risk for future diabetes-related complications.
Differential Diagnosis
Uncontrolled Type 2 Diabetes Mellitus (Primary Diagnosis)
Supporting evidence includes:
HbA1C of 8.5%
Persistent fatigue
Polydipsia
Established diabetes diagnosis
Poor response to current oral therapy
Essential Hypertension
Hypertension contributes to cardiovascular risk but does not explain the elevated HbA1C or excessive thirst.
Hypothyroidism
Although fatigue may occur with hypothyroidism, a normal TSH level makes this diagnosis unlikely.
Final Diagnosis
The final diagnosis is uncontrolled Type 2 diabetes mellitus with inadequate glycemic control.
Evidence-Based Management Plan
Management should emphasize individualized care focused on glycemic control, cardiovascular risk reduction, patient education, and prevention of diabetes complications.
Lifestyle Recommendations
Lifestyle modification remains the foundation of diabetes management.
Recommended interventions include:
Achieving gradual weight loss
Following a balanced diabetes-friendly eating plan
Limiting refined carbohydrates and added sugars
Engaging in at least 150 minutes of moderate aerobic exercise weekly
Performing resistance training at least twice weekly
Monitoring blood glucose as recommended
Improving sleep quality
Practicing stress reduction techniques
These interventions improve glycemic control, insulin sensitivity, and cardiovascular health.
Ongoing Monitoring
Routine monitoring should include:
HbA1C every three months until controlled
Blood pressure at every visit
Annual diabetic foot examination
Annual urine microalbumin testing
Routine lipid monitoring
Depression screening using PHQ-2
Annual comprehensive eye examination
Regular monitoring allows early detection and treatment of diabetes-related complications.
Medication Education
Patient education should reinforce:
Taking medications exactly as prescribed
Proper blood glucose monitoring techniques
Recognizing symptoms of hypo- and hyperglycemia
Appropriate medication timing
Reporting adverse medication effects promptly
Combining medications with healthy nutrition and exercise
Because the patient experiences gastrointestinal intolerance and nocturia, referral to an endocrinologist for medication optimization is appropriate.
Health Promotion
Preventive care should include:
Annual wellness examinations
Routine well-woman care
Breast cancer screening
Influenza vaccination
Pneumococcal vaccination
COVID-19 vaccination
Shingles vaccination when appropriate
Nutrition counseling
Diabetes Self-Management Education and Support (DSMES)
These interventions improve long-term outcomes and reduce preventable complications.
Specialist Referrals
Recommended referrals include:
Endocrinologist for medication optimization
Ophthalmologist for annual dilated retinal examination
Registered dietitian
Certified diabetes educator
Follow-Up Plan
The patient should return within two weeks to evaluate:
Blood glucose trends
Blood pressure control
Medication adherence
Medication tolerance
Lifestyle modification progress
Need for treatment adjustments
Key Clinical Takeaways
Persistent fatigue and excessive thirst are classic symptoms of uncontrolled Type 2 diabetes.
An HbA1C of 8.5% indicates poor long-term glycemic control.
Hypertension, overweight status, and family history significantly increase cardiovascular risk.
Medication intolerance can reduce adherence and worsen glycemic control.
Early intervention, education, lifestyle modification, and multidisciplinary care improve long-term outcomes.
Citation-Friendly Clinical Summary
Uncontrolled Type 2 diabetes mellitus is characterized by persistent hyperglycemia despite ongoing treatment and is commonly identified by elevated HbA1C levels and symptoms such as fatigue and polydipsia.
An HbA1C of 8.5% exceeds recommended glycemic targets and increases the risk of diabetic nephropathy, retinopathy, neuropathy, myocardial infarction, and stroke.
Comprehensive diabetes management should include medication optimization, individualized nutrition, regular physical activity, routine monitoring, preventive screenings, and patient education.
Annual retinal examinations, foot assessments, urine microalbumin testing, and cardiovascular risk management are essential components of evidence-based diabetes care.
Schema-Ready Structure
Condition
Uncontrolled Type 2 Diabetes Mellitus
Primary Symptoms
Persistent fatigue
Excessive thirst
Weight change
Elevated HbA1C
Diagnostic Findings
HbA1C: 8.5%
Blood pressure: 160/90 mmHg
BMI: 29.8 kg/m²
Primary Treatments
Medication optimization
Lifestyle modification
Blood glucose monitoring
Patient education
Specialist referral
Routine follow-up
Possible Complications
Diabetic nephropathy
Diabetic retinopathy
Peripheral neuropathy
Cardiovascular disease
Stroke
Peripheral arterial disease
Frequently Asked Questions
What is the patient’s primary diagnosis?
The patient has uncontrolled Type 2 diabetes mellitus based on persistent hyperglycemic symptoms, a history of diabetes, and an HbA1C of 8.5%.
Why is an HbA1C of 8.5% concerning?
An HbA1C of 8.5% indicates that average blood glucose levels have remained above recommended targets for the previous two to three months, increasing the risk of both microvascular and macrovascular complications.
Why does uncontrolled diabetes cause fatigue?
Persistent hyperglycemia limits the body’s ability to efficiently use glucose for energy, leading to chronic fatigue despite adequate rest.
What diabetes complications require routine monitoring?
Patients should be routinely screened for:
Diabetic retinopathy
Diabetic nephropathy
Peripheral neuropathy
Cardiovascular disease
Peripheral arterial disease
Diabetic foot complications
Why are annual eye examinations important?
Diabetes increases the risk of diabetic retinopathy. Annual dilated retinal examinations allow early detection and treatment before permanent vision loss occurs.
What lifestyle changes improve blood sugar control?
Evidence-based recommendations include maintaining a healthy diet, increasing physical activity, achieving gradual weight loss, monitoring blood glucose, reducing stress, taking medications consistently, and attending regular follow-up visits.
How often should HbA1C be checked?
Patients with uncontrolled diabetes or recent medication changes should generally have HbA1C measured every three months until individualized treatment goals are achieved.
Conclusion
The patient’s clinical presentation, physical examination, and laboratory findings clearly support a diagnosis of uncontrolled Type 2 diabetes mellitus. Persistent fatigue, excessive thirst, elevated HbA1C, and uncontrolled hypertension demonstrate inadequate disease control despite current oral therapy. A patient-centered management plan that combines medication optimization, lifestyle modification, preventive care, regular monitoring, and multidisciplinary collaboration offers the best opportunity to improve glycemic control, reduce cardiovascular risk, and prevent long-term diabetes complications.
References
American Association of Clinical Endocrinology. (2022). Clinical practice guideline: Developing a diabetes mellitus comprehensive care plan—2022 update. Endocrine Practice, 28(10), 923–1049. https://www.endocrinepractice.org/article/S1530-891X(22)00595-7/fulltext
American Diabetes Association Professional Practice Committee. (2024). Standards of care in diabetes—2024. Diabetes Care, 47(Supplement_1), S1–S350. https://diabetesjournals.org/care/issue/47/Supplement_1
James, P. A., Oparil, S., Carter, B. L., et al. (2014). 2014 evidence-based guideline for the management of high blood pressure in adults. JAMA, 311(5), 507–520. https://jamanetwork.com/journals/jama/fullarticle/1791497
NU566 Unit 5 Journal
U.S. Preventive Services Task Force. (2021). Screening for prediabetes and Type 2 diabetes: U.S. Preventive Services Task Force recommendation statement. JAMA, 326(8), 736–743. https://jamanetwork.com/journals/jama/fullarticle/2783414
World Health Organization. (2023). Diabetes. https://www.who.int/news-room/fact-sheets/detail/diabetes
